tides forcing on a flat bottom

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asujrpv

tides forcing on a flat bottom

#1 Unread post by asujrpv »

Hello everybody,

I am experiencing problems with the boundaries in a test case that is not realistic, but I think should give me kinetic turbulence generated only at the bottom. First let me explain the real problem I am analyzing: It is a small area with shallow water. I applied tide forcing to the area and gave me some results that seem reasonable (please see attached figures of a cross-section at day = 3). Then, in order to investigate whether my forcing was correct, I set the bottom as flat and put no stratification. In the first (realistic case) the file attached is Ysec_real.gif, the next two files Ysec.gif and Xsec.gif are cases with the bottom almost flat and same forcing as in the realistic case.

Seems obvious that I have problems with the boundary. My *.h file is as follows: I will appreciate your help!



CDW CDW modeling
ANA_BSFLUX Analytical kinematic bottom salinity flux.
ANA_BTFLUX Analytical kinematic bottom temperature flux.
ANA_FSOBC Analytical free-surface boundary conditions.
ANA_INITIAL Analytical initial conditions.
ANA_M2OBC Analytical 2D momentum boundary conditions.
ANA_SMFLUX Analytical kinematic surface momentum flux.
ANA_SSFLUX Analytical kinematic surface salinity flux.
ANA_STFLUX Analytical kinematic surface temperature flux.
ASSUMED_SHAPE Using assumed-shape arrays.
AVERAGES Writing out time-averaged nonlinear model fields.
DIAGNOSTICS_TS Computing and writing tracer diagnostic terms.
DIAGNOSTICS_UV Computing and writing momentum diagnostic terms.
DJ_GRADPS Parabolic Splines density Jacobian (Shchepetkin, 2002).
DOUBLE_PRECISION Double precision arithmetic.
EAST_FSCHAPMAN Eastern edge, free-surface, Chapman condition.
EAST_M2FLATHER Eastern edge, 2D momentum, Flather condition.
EAST_M3RADIATION Eastern edge, 3D momentum, radiation condition.
EAST_KRADIATION Eastern edge, TKE fields, radiation condition.
EAST_TRADIATION Eastern edge, tracers, radiation condition.
GLS_MIXING Generic Length-Scale turbulence closure.
KANTHA_CLAYSON Kantha and Clayson stability function formulation.
MIX_S_TS Mixing of tracers along constant S-surfaces.
MIX_GEO_UV Mixing of momentum along geopotential surfaces.
MIX_S_UV Mixing of momentum along constant S-surfaces.
MPI MPI distributed-memory configuration.
NONLINEAR Nonlinear Model.
NONLIN_EOS Nonlinear Equation of State for seawater.
NORTH_FSCHAPMAN Northern edge, free-surface, Chapman condition.
NORTH_M2FLATHER Northern edge, 2D momentum, Flather condition.
NORTH_M3RADIATION Northern edge, 3D momentum, radiation condition.
NORTH_KRADIATION Northern edge, TKE fields, radiation condition.
NORTH_TRADIATION Northern edge, tracers, radiation condition.
N2S2_HORAVG Horizontal smoothing of buoyancy and shear.
POWER_LAW Power-law shape time-averaging barotropic filter.
PROFILE Time profiling activated .
K_GSCHEME Third-order upstream advection of TKE fields.
RAMP_TIDES Ramping tidal forcing for one day.
!RST_SINGLE Double precision fields in restart NetCDF file.
SALINITY Using salinity.
SOLVE3D Solving 3D Primitive Equations.
SOUTH_FSCHAPMAN Southern edge, free-surface, Chapman condition.
SOUTH_M2FLATHER Southern edge, 2D momentum, Flather condition.
SOUTH_M3RADIATION Southern edge, 3D momentum, radiation condition.
SOUTH_KRADIATION Southern edge, TKE fields, radiation condition.
SOUTH_TRADIATION Southern edge, tracers, radiation condition.
SPLINES Conservative parabolic spline reconstruction.
SSH_TIDES Add tidal elevation to SSH climatology.
TS_A4HADVECTION Fourth-order Akima horizontal advection of tracers.
TS_A4VADVECTION Fourth-order Akima vertical advection of tracers.
TS_DIF2 Harmonic mixing of tracers.
UV_ADV Advection of momentum.
UV_COR Coriolis term.
UV_U3HADVECTION Third-order upstream horizontal advection of 3D momentum.
UV_C4VADVECTION Fourth-order centered vertical advection of momentum.
UV_QDRAG Quadratic bottom stress.
UV_TIDES Add tidal currents to 2D momentum climatologies.
UV_VIS2 Harmonic mixing of momentum.
VAR_RHO_2D Variable density barotropic mode.
WEST_FSCHAPMAN Western edge, free-surface, Chapman condition.
WEST_M2FLATHER Western edge, 2D momentum, Flather condition.
WEST_M3RADIATION Western edge, 3D momentum, radiation condition.
WEST_KRADIATION Western edge, TKE fields, radiation condition.
WEST_TRADIATION Western edge, tracers, radiation condition.
Attachments
real case
real case
Ysec_real.gif (23.54 KiB) Viewed 1241 times
Y-section TKE flat bottom
Y-section TKE flat bottom
Ysec.gif (9.72 KiB) Viewed 1241 times
X-cross-section TKE flat bottom
X-cross-section TKE flat bottom
Xsec.gif (13.04 KiB) Viewed 1241 times

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